Question

air exerts pressure give reason class 7​

Answer 1

Answer:

Moving air (called wind) exerts pressure. Air is made up of tiny particles called molecules which move around quickly in all directions. If we put air in a closed container then the fast moving air molecules collide' with the walls of the container and exert a force on the walls of the container from inside.

Answer 2

Answer:

Air is made up of molecules of different gases. The molecules are colliding with each other continuously with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces.